During his stint in the UK, the injury-prone Falcao managed just five goals in 41 outings in all competitions for both clubs but has returned to form and fitness since returning to France with four goals in seven outings for Monaco so far this term.
“The problem with Falcao is not only his knee injury, it is also the fact that he left to play two seasons in Manchester and Chelsea,” said Jardim.
“He tried to keep playing at a high level when normally when you have an injury like this, you stay in your club to try to come back faster.
“When a player is injured, normally they do not change club. It’s not easy to recover and play along. Players are not machines.”